Pipe-cutter



JAMES E. BRowN, 0E BoSToN, MASSACHUSETTS, ASSIGNoR To HIMSELE,AND,1.21=1E`1`v1iul` NORTON, OF MEDFORD, MASSACHUSETTS.` l

PIPE-CUTTER.

Specification of Letters Patent No.

To all whom it may concern: j

Be it known that I, JAMES B. BROWN, of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improved Pipe-Cutter or Instrument for Severing Metallic or Gas Pipes; and I do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings, of which- Figure l, is a side view, and Fig. 2, a longitudinal section of such pipe cutter.;

In constructing such instrument I employ two jaws or pipe holders A, B, having the forms as exhibited in the drawings. Each jaw is provided with an angular recess a, and both are hinged together or turn on a common joint pin b. From each jaw a shank or handle C, or D, is extended either or both of which should be tapering and ofa material that will permit the same to spring.

. One of the Shanks, viz. C, is formed with a right angular bend c, and terminates in a hook d. The other shank is bent as shown at e, the same being to enable the hook d, to clasp and hold the shank D. Furthermore, transversely within the jaw A, there is a recess or socket f, for the reception of a furcated cutter E, so fitted and formed as to be capable vof being moved endwisc within the jaw and either toward or away from the recess a, and of the other jaw B. The upper end of the cutter rests against the inner end of an adjusting screw F, which screws transversely into the jaw A, as shown in Fig. 2.

Preparatory to using the` above described instrument for cutting a pipe the screw F, should be turned back sufficiently not only to enable the pipe to be introduced into the recessfa, of the 'jaw B, and the jaws to be closed far enough to grasp the pipe by the cutter and the jaw B, but so that under such 26,544, dated neeemle'er` 20,1859.

circumstances one orboth springshanksinay g l.

be sprung inward and so asftohook the two Shanks together and cause thelcutter byltlie 1` power of the springpf theshankor `Shanks l to be forced hard against the pipe;` Under l 1 f this state of thingsif theimplement turned l l f1 on the pipe the cuttingledges cally, of `the 350i i transversely around it, thespringoffthle,` i l cutter will make agroove. in `theffpipej` and shank orshanks, operatingto feed the cutter 'farther into the pipe during `eachturn` of the instrument aboutgthe pipe. This feeding of the cutter as it may slackenmay befinj-y` creased by turning tghescrew-F, so asto force the cutter harder "against the pipe."`

pipe.

the pipe while being1 moved around it `'Ihe I am aware that blacksmiths pincers` `are Y.

often made with spring Shanks. Therefore such an` applica-1;

I do not claim such under tion of them, but

What I do claim as afneworimproved"` article of manufacture, is-` The pipe cutting instrument,w as constructif," i

ed with the hinged land recessed jaws, "the movable cutter, the adjustable screw, andthe spring shank or Shanks extendingfrompthe 1 jaws and'having a connection `hook orI Hits@ equivalent -all1 substantially 3 asi specified.;` l

lVitnesses J. M. NORTON, F. P. HALE, Jr. 

